論文

査読有り
2017年4月

Isotopic Shift of Atom-Dimer Efimov Resonances in K-Rb Mixtures: Critical Effect of Multichannel Feshbach Physics

PHYSICAL REVIEW LETTERS
  • K. Kato
  • ,
  • Yujun Wang
  • ,
  • J. Kobayashi
  • ,
  • P. S. Julienne
  • ,
  • S. Inouye

118
16
開始ページ
163401
終了ページ
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevLett.118.163401
出版者・発行元
AMER PHYSICAL SOC

Multichannel Efimov physics is investigated in ultracold heteronuclear admixtures of K and Rb atoms. We observe a shift in the scattering length where the first atom-dimer resonance appears in the K-41-Rb-87 system relative to the position of the previously observed atom-dimer resonance in the K-40-Rb-87 system. This shift is well explained by our calculations with a three-body model including van der Waals interactions, and, more importantly, multichannel spinor physics. With only minor differences in the atomic masses of the admixtures, the shift in the atom-dimer resonance positions can be cleanly ascribed to the isolated and overlapping Feshbach resonances in the K-40-Rb-87 and K-41-Rb-87 systems, respectively. Our study demonstrates the role of multichannel Feshbach physics in determining Efimov resonances in heteronuclear three-body systems.

リンク情報
DOI
https://doi.org/10.1103/PhysRevLett.118.163401
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000399816500010&DestApp=WOS_CPL
ID情報
  • DOI : 10.1103/PhysRevLett.118.163401
  • ISSN : 0031-9007
  • eISSN : 1079-7114
  • Web of Science ID : WOS:000399816500010

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